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3 years ago

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Mathematics

2 answers:

Nikitich [7]3 years ago

5 0

Answer:

D y = 9/x

Step-by-step explanation:

An inverse variation is of the form

xy = k where k is a constant

We can write this as

y = k/x

The only equation that is of this form is

D y = 9/x

vivado [14]3 years ago

4 0

Answer:

$\boxed{\mathrm{Option \: D}}$

Step-by-step explanation:

Inverse variation is written as:

$y=\frac{k}{x}$

Where k is the constant of proportionality.

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What is the probability of getting a number greater than or equal to 5 when rolling a number cube numbered 1 to 6?

Dima020 [189]

Answer:

There is a 1/3 (or 0.33%) probability of rolling a number greater than or equal to 5.

Step-by-step explanation:

First, find what numbers are greater than or equal to 5:

5 and 6

Find what options you can get on a number cube:

1, 2, 3, 4, 5, and 6

Out of the 6 possible outcomes, there are only 2 that will get a number greater than or equal to 5. Write this as a fraction:

2/6

Simplify:

1/3

7 0

3 years ago

Graph the image of this figure after a dilation with a scale factor of 2 centered at the origin.

den301095 [7]

Answer:

Here, the coordinates of the given rectangle are (1,2), (3,2), (1,-1) and (3,-1)

In the dilation by the scale factor k with centered at origin,

$(x,y)\rightarrow (kx,ky)$

Thus, If the dilation occurs by the scale factor of 2 with centered at origin,

New coordinates of the Rectangle are,

$(1,2)\rightarrow (2\times 1, 2\times 2)$

$(3,2)\rightarrow (2\times 3, 2\times 2)$

$(1,-1)\rightarrow (2\times 1, 2\times -1)$

$(3,-1)\rightarrow (2\times 3, 2\times -1)$

Thus, the coordinates of new rectangle are,

(2,4), (6,4), (2,-2) and (6,-2)

3 0

3 years ago

Read 2 more answers

F(5)=3x+2 <br> What is the solution

Nady [450]

Answer:

f=3/5x+2/5c

Step-by-step explanation:

4 0

3 years ago

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Find the value of x.<br> Round to the nearest tenth.

tankabanditka [31]

Answer:

x ≈ 42.3

Step-by-step explanation:

The law of cosines is given. For this problem, ...

a = 25, b = 30, c = x , C = 100°

Filling in these values, we have ...

x^2 = 25^2 +30^2 -2(25)(30)cos(100°)

x^2 ≈ 1785.4723

x ≈ √1785.4723 . . . . take the square root

x ≈ 42.3

6 0

3 years ago

What is in the following sequence - 6, - 14 - 22,-30

ozzi

-6,-14,-22,-30,-38,-46

7 0

3 years ago